Disney gave money to enable the making of the Avengers after Marvel did all of the franchise building..... I'm not sure that's amazing, Disney threw a lot of money at John Carter and it was a disaster and I don't know who supported that steaming pile of crap that was Battleship but that was another mistake.Which still kicked serious ass. Disney has shown that if they want to make a great movie, they can do it.
Avengers was to Joss Whedon what the Matrix was to Keanu Reeves.... a perfect fit in every way, I'm glad Avengers was a Whedon project but Joss is a limited Guru no matter how much I loved FireFly and I would be very scared if he was given the reigns of Star Wars.
I'd prefer to see Christopher Nolan do a Star Wars film with the funds required.If Disney hands Whedon the Star Wars franchise, a blank check, and at least one strong co-writer to keep Whedon from overdoing the drama, then I'll believe something special is about to happen.
on a side note I don't believe Disney should jump into making a Star Wars film too quickly, I'd much rather see Disney build LucasFilm into it's Sci Fi franchise maker by getting ahold of Tobey Macquire who owns the rights to making a Robotech Film, I believe that would be a less risky proposition while also offering a serious opportunity to build another franchise.
as for the Star Wars movies what I'd love to see if Disney throw about 5 million and a cppl of technical advisors into tweaking the first three movies (4,5,6) so that many scenes make sense..... like the first movies moment where all of the defending troops decided to fall over and then run down the halls waving their arms around when the Imperial troopers boarded the ship versus holding them at the entrance and picking them off..... a simple answer would be some future version of flash bangs thrown by the first imperial trooper as he got shot but I had to think that up with the movie instead favoring the "let's all just fall over and then run away".